The results of experiments on the formation of high-power pulses with a rise time of <1 ns="" and="" a="" duration="" of="" 1–2="" ns="" by="" a="" solid-state="" semiconductor="" sharpener="" operating="" in="" the="" mode="" of="" delayed="" impact="" ionization="" wave="" are="" presented.="" a="" peak="" power="" of="" 1="" gw="" in="" a="" single-pulse="" operation="" mode="" and="" 750="" mw="" at="" a="" pulse="" repetition="" rate="" of="" 3.5="" khz="" was="" obtained="" across="" a=""> load. Experiments on the pulse transformation using a forming line with a variable wave impedance and generation of bipolar voltage pulses are described.